JPH0523398Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is used to removably fix the backrest or seat of a car's rear seat (hereinafter collectively referred to as the seat) to a car body panel. This invention relates to a two-piece plastic fixture.

<Prior art> An automobile seat fixing device includes a box-shaped outer frame fixed to a vehicle body panel, a holder held inside the outer frame and holding a substantially U-shaped wire hanging from the seat. The present applicant has published a plastic product made of
13940).

The holder held within the outer frame of this fixture is
The holder can be operated from outside the outer frame from the closed position, where the seat is fixed by gripping the wire, to the open position, where the wire is released and the seat can be removed. The seat can be removed from the vehicle body by operating it from the open position.

<Problems to be solved by the invention> In order to toggle the holder between the open and closed positions in this way, the holder is provided with a number of thin hinge parts, and these hinge parts reduce the strength of the holder. If the seat is lowered and a large force is applied while the seat is fixed, there is a risk that the holder may break off at the hinge.

Also, to fix the sheet by biting the wire, place the holder inside the outer frame in the open position, and when the sheet wire descends into the outer frame and pushes the holder down, the holder will move to the closed position by the above-mentioned toggle action. If the holder is in the closed position within the outer frame, the holder will not be able to grip the wire even if the wire pushes the holder down. It is difficult to determine whether the holder inside the outer frame is in the open or closed position when viewed from the outside, so I pushed the holder down with the wire and confirmed that it was in the closed position because the holder did not catch the wire. I understand, it is necessary to change the holder to the open position and push the holder down again with the wire,
The efficiency of sheet fixing work decreases.

Furthermore, in order to change the holder in the outer frame from the closed position where the seat is fixed to the open position, it is necessary to operate an operating piece projecting downward from the lower end of the outer frame, which is difficult to operate.

<Means for Solving the Problems> Therefore, the present invention is such that the seat is normally biased to the closed position, and when the wire of the seat is pushed down, the wire opens it once against the bias, and when the wire passes downward, the biasing force causes the seat to open to the closed position. Developed with the aim of providing a very robust, strength-reliable fixture that is easy to operate from the closed position to the open position against bias. The seat fixing device includes a cylindrical leg with an open top surface, a cylindrical wall connected to the upper end of the cylindrical leg, and a cylindrical wall extending outward from the top and bottom of the cylindrical wall at a distance from the top and bottom in the vertical direction. It consists of a main body made of plastic that has upper and lower brim integrally, and a lever arm made of plastic that is pivoted between the upper and lower brim of the main body, and the main body is connected between the lower brim and the main body. The cylindrical leg part is provided with a locking piece that fixes the main body to the panel by sandwiching the hole edge of the panel from above and below, and a horizontal hole is provided in the cylindrical wall, and the lever arm protrudes into the horizontal hole so that the cylindrical A horizontal piece that crosses the inside of the wall, an operating piece that faces away from the horizontal piece and projects outward from the gap between the upper and lower flanges, and a state in which the horizontal piece slides into contact with the outer surface of the cylindrical wall and plunges into the horizontal hole. It is characterized in that it is integrally equipped with a spring piece that biases the horizontal piece, and a cam slope that slopes downward toward the tip of the piece is formed on the upper surface of the horizontal piece.

Preferably, the cylindrical wall of the main body has a hole at a position opposite to the horizontal hole, and the lever arm has a protrusion that projects into the hole at the tip of the horizontal piece.

Furthermore, a stopper is provided between one or both of the upper and lower flanges of the main body and the lever arm, which comes into contact when the lever arm is rotated against the bias of the spring piece and the horizontal piece is pulled out from the horizontal hole. is preferred.

<Example> Reference numeral 1 denotes a main body made of plastic, which includes a cylindrical leg portion 2 with an open top surface, a cylindrical wall 3 connected to the upper end of the cylindrical leg portion, and an interval in the vertical direction from the top and bottom of the cylindrical wall. It has upper and lower flanges 4 and 5 integrally projecting outward while maintaining the same. Reference numeral 6 designates a lever arm made of plastic and pivoted between the upper and lower flanges 4 and 5 of the main body.

The main body 1 is provided with locking pieces 7, 7 on the cylindrical leg portion 2, which fix the main body to the panel by sandwiching the hole edge P' of the panel P from above and below between the lower collar 5, and A horizontal hole 8 is provided in the cylinder wall 3.

The lever arm 6 has a horizontal piece 9 that plunges into the horizontal hole 8 and crosses the interior 3' of the cylinder wall 3, and an operation that faces behind the horizontal piece and projects outward from the gap between the upper and lower collars 4 and 5. piece 10 and a spring piece 11 that slides on the outer surface of the cylindrical wall 3 and biases the horizontal piece 9 into the horizontal hole 8, and the upper surface of the horizontal piece 9 has a spring piece 11 at the tip of the piece. Downhill cam slope 1
2 is formed. The cylindrical wall 3 of the main body 1 has a hole 13 at a position opposite to the horizontal hole 8, and the lever arm 6 is provided with a protrusion 14 at the tip of the horizontal piece 8 that projects into the hole 13. Also, between one or both of the upper and lower flanges 4 and 5 of the main body 1 and the lever arm 6, there is a space between which the lever arm is rotated against the bias of the spring piece 11 and the horizontal piece 9 is pulled out from the horizontal hole 8. A stopper is provided that comes into contact with the.

The cylindrical leg 2 of the main body 1, the cylindrical wall 3, and the upper and lower collars 4 and 5
is an elongated oval shape, the horizontal hole 8 is opened in the center of one straight side of the cylindrical wall 3, and the hook-shaped locking piece 7 is an inverted U-shaped slit in the center of both straight sides of the cylindrical leg 2. 1
It is surrounded by 7. And lever arm 6
In order to pivotally attach the upper and lower collars 4 and 5, circular holes 18 are formed in one of the semicircular ends of the upper and lower flanges 4 and 5 so as to face each other vertically.

The thickness of the lever arm 6 is the thickness of the upper and lower collars 4 and 5 of the main body.
This is slightly smaller than the vertical spacing of . The horizontal piece 9 of the lever arm 6 enters a horizontal hole 8 made in the center of one straight side of the cylinder wall 3 and crosses the inside 3' of the cylinder wall, and its tip abuts the other straight side. On the other hand, the free end of the spring piece 11 slides against the other straight side of the cylindrical wall 3 and is slightly curved, thereby holding the horizontal piece 9 in the state of protruding into the horizontal hole 8. In other words, the lever arm 6 is shaped so as to surround one semicircular end of the cylinder wall 3. From above and below the base of the spring piece 11, the circular hole 1
A short shaft 19 that enters into 8 enters into one piece. To assemble the main body and lever arm 6, insert the horizontal piece 9 into the horizontal hole 8, push the lever arm between the upper and lower flanges 4 and 5, widen the gap between the flanges 4 and 5 with the shaft 19, and attach the shaft 19 to the flange 4. , 5 into the circular hole 18. As a result, the assembled state shown in solid lines in FIGS. 3 and 5 is achieved, and the spring piece 11 is slightly uncurved and deformed, urging the horizontal piece 9 into the horizontal hole.

An oval-shaped hole corresponding to the cross-sectional shape of the cylindrical leg 2 is opened in the vehicle body panel P to which this fixture is to be attached, and the cylindrical shape is formed until the lower surface of the lower collar 5 comes into contact with the upper surface of the panel P. Push the leg 2 into the hole from above. As a result, the locking pieces 7, 7 extending obliquely upward from the cylindrical leg are once pushed inward by the hole edge when passing through the hole from top to bottom, but when they finish passing through the hole downward, they return to their original positions. The main body 1 is restored to the original state, and the main body 1 is fixed to the panel P by sandwiching the hole edge in cooperation with the lower collar 5.

To secure the seat, use a U-shaped bracket that hangs down from the seat.
The wire W having a shape like a bevel is pushed from above into the inside 3' of the cylindrical wall 3 (arrow in Fig. 1). As a result, the lower end of the wire tries to press down the inclined surface 12 on the upper surface of the horizontal piece 9, and the component force generated on the inclined surface moves the horizontal piece 9 in the direction of coming out of the horizontal hole 8. As a result, the lever arm rotates about the shaft 19 in the counterclockwise direction of the arrow in Fig. 5, and the spring piece 11 further extends its curvature and stores spring force.
Then, when the lower end of the wire passes under the tip of the cross piece, the lever arm rotates clockwise due to the restoring force of the spring piece which tries to return to its original assembled state, and the cross piece 9 again crosses the inside 3' of the cylindrical wall.
Therefore, even if one tries to lift the seat from the body panel, the lower end of the wire W gets caught on the horizontal piece 9 from below, making it impossible.

To remove the seat for repairs or the like, place your finger on the operating piece 10, rotate the lever arm 6 counterclockwise as shown by the arrow in FIG. 5 against the bias of the spring piece 11, and remove the horizontal piece. 9 from the side hole 8 as shown by the broken line, lift the sheet in this state, and pull up the wire W from inside the cylinder wall 3.

To facilitate the assembly of the main body and the lever arm 6, the upper end of the shaft 19 should face the pushing direction of the lever arm and be sloped down as shown in the figure, and the lower end of the slope should be aligned with the upper surface of the upper collar 4 and the lower end of the shaft 19. It is best to make it the same level as the bottom surface of the tsuba 5.

Furthermore, a hole 13 opposite to the horizontal hole 8 is formed in the cylindrical wall of the main body.
is opened, and the tip of the horizontal piece 9 of the lever arm 6 is provided with a protrusion 14 that projects into the hole 13 when the horizontal piece enters the horizontal hole 8 and crosses the interior 3' of the cylinder wall. Even if an upward force is applied to the sheet and the lower end of the wire W tries to pull up the horizontal piece with a strong force, the horizontal piece can resist that force without being damaged. This protrusion 14 does not need to be provided over the entire width of the transverse section 9; it is sufficient for it to protrude from a portion of the width as shown.

In addition, when the operating piece 10 of the lever arm is turned clockwise in FIG. 5 to remove the seat and the horizontal piece 9 is pulled out from the horizontal hole 8, it is pulled outward from one or both of the upper and lower flanges 4 and 5. Extending stopper 15
If the stopper 16 of the lever arm comes into contact with the lever arm and prevents the lever arm from rotating further clockwise, the spring piece 11 of the lever arm can be prevented from breaking.

It is preferable to connect and reinforce the connection wall 20 between the upper and lower flanges 4 and 5 so as not to hinder the insertion and movement of the lever arm 6.

In the illustrated embodiment, in order to pivotally attach the lever arm 6 between the flanges 4 and 5, the circular hole 18 is protruded from the flanges 4 and 5, and the shaft 19 is protruded from the lever arm 6.
may be provided on the lever arm, and the shaft 19 may be provided protruding from opposing surfaces of the collars 4 and 5.

<Effects of the invention> In the present invention, the horizontal piece of the lever arm is always in the closed position where it plunges into the horizontal hole in the cylinder wall and crosses the inside of the cylinder wall due to the force, and the upper surface of the horizontal piece slopes downward toward the tip. The slope is becoming steeper. Therefore, when the lower end of the wire of the sheet is pushed down into the inside of the cylinder wall, the horizontal piece of the lever arm resists the bias and moves in the direction of coming out of the horizontal hole, and when the lower end of the wire passes downward, the horizontal piece is attached. The force causes the seat to return to the closed position and secure the seat. Therefore, the seat can be fixed without considering whether the horizontal piece of the lever arm is in the closed position or the open position, and the work efficiency of seat fixing is greatly improved.

Then, by operating the operating piece of the lever arm, the horizontal piece can be pulled out from the horizontal hole in the cylinder wall against the bias and the seat can be removed. Since it is located on the vehicle body panel, it is easy to operate. Furthermore, since the spring piece integrally provided on the lever arm biases the horizontal piece into the horizontal hole of the cylinder wall, there is no need to use a coil spring or other separate spring member.
It can be constructed from two parts: the main body and the lever arm.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a perspective view showing the relationship between the sheet and the wire, Fig. 2 is a sectional view of the sheet in a fixed state, and Fig. 3 is a plan view of the fixing device. , FIG. 4 is a front view of FIG. 3, FIG. 5 is a sectional view taken along the line V--V of FIG. 4, and FIG. 6 is a perspective view of the lever arm. In the figure, 1 is the main body, 2 is the cylindrical leg, 3 is the cylindrical wall,
3' is the inside, 4 and 5 are the upper and lower collars, 6 is the lever arm, 7 is the locking piece, 8 is the horizontal hole, 9 is the horizontal piece, 1
0 is an operating piece, 11 is a spring piece, 12 is a cam slope, 1
3 is a hole, 14 is a protrusion, and 15 and 16 are stoppers.

Claims (1)

[Claims for Utility Model Registration] (1) A cylindrical leg with an open upper surface, a cylindrical wall connected to the upper end of the cylindrical leg, and an outer wall that is spaced apart from above and below the cylindrical wall in the vertical direction. It consists of a main body made of plastic that integrally has upper and lower flanges projecting toward the upper and lower sides, and a lever arm made of plastic that is pivoted between the upper and lower flanges of the main body. The cylindrical leg section is provided with a locking piece for fixing the main body to the panel by sandwiching the hole edge of the panel from above and below, and a horizontal hole is provided in the cylindrical wall, and the lever arm is inserted into the horizontal hole. A horizontal piece that enters and crosses the inside of the cylindrical wall; an operating piece that faces away from the horizontal piece and protrudes outward from the gap between the upper and lower flanges; 1. A seat fixing device for an automobile, characterized in that a spring piece is integrally biased into a state in which the horizontal piece is pushed in, and a cam slope is formed on the upper surface of the horizontal piece with a downward slope toward the tip of the piece. (2) In the automobile seat fixing device according to claim 1, the cylindrical wall of the main body has a hole at a position opposite to the horizontal hole, and the lever arm has a protrusion that projects into the hole at the tip of the horizontal piece. An automobile seat fixing device characterized by: (3) In the automobile seat fixing device according to any one of claims 1 and 2, the lever arm is connected to a spring piece between one or both of the upper and lower collars of the main body and the lever arm. An automobile seat fixing device, characterized in that it is provided with a stopper that comes into contact when the horizontal piece is pulled out of the horizontal hole by rotating against the bias of the vehicle.